EP2867422A1 - Combination reinforcing coupler and column alignment device - Google Patents

Combination reinforcing coupler and column alignment device

Info

Publication number
EP2867422A1
EP2867422A1 EP20130810601 EP13810601A EP2867422A1 EP 2867422 A1 EP2867422 A1 EP 2867422A1 EP 20130810601 EP20130810601 EP 20130810601 EP 13810601 A EP13810601 A EP 13810601A EP 2867422 A1 EP2867422 A1 EP 2867422A1
Authority
EP
European Patent Office
Prior art keywords
tubular member
studs
stud
bar
adjustment nut
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP20130810601
Other languages
German (de)
French (fr)
Other versions
EP2867422A4 (en
EP2867422B1 (en
Inventor
Steven Prowse
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
M3s Ip Pty Ltd
Original Assignee
M3S Holdings Pty Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from AU2012902731A external-priority patent/AU2012902731A0/en
Application filed by M3S Holdings Pty Ltd filed Critical M3S Holdings Pty Ltd
Publication of EP2867422A1 publication Critical patent/EP2867422A1/en
Publication of EP2867422A4 publication Critical patent/EP2867422A4/en
Application granted granted Critical
Publication of EP2867422B1 publication Critical patent/EP2867422B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
    • E04C5/162—Connectors or means for connecting parts for reinforcements
    • E04C5/163—Connectors or means for connecting parts for reinforcements the reinforcements running in one single direction
    • E04C5/165—Coaxial connection by means of sleeves
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38—Connections for building structures in general
    • E04B1/388—Separate connecting elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38—Connections for building structures in general
    • E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
    • E04B1/4114—Elements with sockets
    • E04B1/4128—Elements with sockets receiving adjustable or removal nuts
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38—Connections for building structures in general
    • E04B1/58—Connections for building structures in general of bar-shaped building elements
    • E04B1/5825—Connections for building structures in general of bar-shaped building elements with a closed cross-section
    • E04B1/5837—Connections for building structures in general of bar-shaped building elements with a closed cross-section of substantially circular form
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
    • E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38—Connections for building structures in general
    • E04B1/58—Connections for building structures in general of bar-shaped building elements
    • E04B2001/5887—Connections for building structures in general of bar-shaped building elements using connectors with sockets

Definitions

  • This invention relates to the building industry, in particular but not limited to an apparatus for aligning and joining reinforced concrete elements, typically columns, walls and/or structural steel components.
  • Prior art connection means are as varied as the applications themselves.
  • a common prior art method of connecting reinforcement bars is by lapping one bar with another with a preferable overlap length normally forty times the bar diameter. While this method does not require the overlapping bars to be accurately aligned it does create congestion within the confines of the concrete element. This has resulted in the concrete element which is typically a column sometimes having to be larger simply to accommodate the additional bars. This results in a coincidental degree of waste associated with this prior art method.
  • Other methods used to join reinforcement bars utilise mechanical connectors which are generally threaded or attached by an epoxy adhesive joining the projecting ends of the reinforcement bars. This method however requires the bars to be perfectly aligned. Furthermore this method is only satisfactory if there is a single bar to be aligned with an opposite bar.
  • connection methods include those disclosed in Australian Patents 2003210074 (Barfix Bermuda Ltd) which discloses a method and device for connecting reinforcing steel bars involving a connecting element comprising a thread cutting portion which cuts a screw thread in one of the reinforcing bars.
  • the thread cutting portion cuts a conical screw thread forming a conical screw end on the reinforcement bar.
  • AU200 051968 discloses a structural bracing system wherein there is disclosed a lockable nut system for the use of threaded steel bar which includes a locking member which is slightly engaged with the bar.
  • the locking member may have a finger to engage the nut with the end of the finger being displaced as a result of the deformation of a finger actuating tab.
  • W098/44215 (Barfix Bermuda Ltd) describes a method and apparatus for interconnecting reinforcement bars wherein the connector cuts the thread in an opposing reinforcing bar as it is tightened.
  • the invention resides in an apparatus for aligning and joining construction elements typically reinforced concrete columns, walls, floors, beams or structural steel components comprising in combination:
  • one or more threaded studs or threaded reinforcement bars protruding from opposing elements to be aligned and joined;
  • first and second threaded interlocking members adapted to screw together and to be associated with each of the opposed studs
  • an adjustment nut screwable on one of the studs or bars and adapted to be encapsulated or enclosed by the interlocking members;
  • the adjustment nut is screw jacked against one of the interlocking members to align the elements and then locked and encapsulated by screwing together the interlocking members.
  • the invention resides in apparatus for aligning and joining construction elements together including in combination; a first threaded stud or threaded reinforcement bar imbedded in and protruding from an end from a first element; a second threaded stud or threaded reinforcement bar imbedded in and protruding from a second element to be aligned and joined with the first element;
  • first tubular member fixedly attached to the first stud, the first tubular member having a threaded outer wall;
  • a second tubular member having an internal thread adapted to be screwed onto the first tubular member, the second tubular member having an end wall with a hole to enable the second tubular member to slide freely over the second stud or bar wherein the dimensions of the hole determines the tolerance required to accommodate any misalignment of the studs;
  • the elements are concrete columns or walls to be vertically aligned.
  • the diameter of the hole in the end wall of the second tubular member is equal to or greater than the internal diameter of the free end of the first tubular member.
  • the washer may be designed to provide additional bearing capacity between the adjustment nut and the tubular members.
  • the washer may also have a slotted hole that would allow for even more bearing capacity (surface area) in the most extreme misalignment allowed for.
  • the adjustment nut may be designed to negate the need for any washers for example by having top and bottom flanges.
  • first and second tubular members have hexagonal or flat-faced portions to facilitate turning with a spanner.
  • lock nuts which can be tightened against the first and second tubular members to further secure them on their respective threaded rods.
  • opposite studs or bar alignment means comprising a cap member having a central protrusion, the cap adapted to be fitted to the end of one stud or bar; the protrusion adapted to be inserted into a central cavity of an interlocking tubular member of an opposite stud or bar to substantially align the opposite studs or bars before screwing together the first and second interlocking tubular members of the studs or bars.
  • the cap is friction welded or screwed onto the end of the one stud or bar.
  • removable clips adapted to clip onto the studs or bars to temporarily support one or both of the interlocking tubular members on the studs or bars away from a capped end while inserting the protrusion of the cap into the central cavity to substantially align the opposite studs or bars.
  • the invention resides in a method of aligning reinforced concrete elements typically columns or wajls and joining their reinforcement bars or studs using the apparatus as herein described including the steps of:
  • Figure 1 shows the invention in use to align and join concrete columns.
  • Figure 2 shows a single unit of the invention in use.
  • FIGS 3, 4, 5 show various views of the invention.
  • Figure 6 shows a cross sectional elevation of the invention wherein the opposing studs are substantially aligned.
  • Figure 7 shows a cross sectional, a elevation of the invention wherein the studs are misaligned.
  • Figures 8, 9 and 10 show various exploded views of the invention.
  • Figure 11 shows the invention in use to join opposing structural steel elements.
  • Figure 12, 13, 14 and 15 show an assembly of a stud or bar alignment means.
  • FIG. 1 there is shown a number of units of the invention 10, 12, 14, 16, 18, 20, 22, 24, in use to align and join rectangular concrete columns or opposed walls sections 26, 28.
  • the invention in use to join and align an upper 30 and a lower 32 construction element wherein the opposed threaded studs 34, 36 are substantially aligned and the top 38 and bottom 40 tubular members are tightened to encapsulate the adjustment nut (not shown).
  • the first tubular member has a flange 38a which provides added purchase or grip in concrete which is poured around the unit thereby sealing the unit.
  • the flange 38a also provides a means by which the tubular member 38 can be secured against an edgeform if it is required to be cast into the construction element 30 leaving only the externally threaded tubular portion protruding from the construction element.
  • Both first and second tubular members have hexagonal portions 38 b, 40a to facilitate tightening with an open ended spanner.
  • Figures 3, 4 and 5 there in shown various views of the apparatus from different angles. In all views, the first 38 and second 40 tubular members have been screwed tight thereby encapsulating and locking in place the adjustment nut (not shown). It is apparent in all views that the opposed threaded studs 34, 36 are substantially coaxially aligned in these views.
  • lock nuts 38c and 40b are optionally provided, which can be tightened against the first and second tubular members (38 and 40, respectively) so as to further secure them on the opposing threaded rods 34 and 36.
  • FIG. 6 and 7 there is shown a cross section elevation of the invention wherein the opposing studs 41, 43 are aligned and misaligned 51, 53 respectively.
  • the internal thread 42a of the second tubular member 42 is shown engaged with the first tubular member 44 having an external thread 44a whereby both tubular members have been tightened and overlapped to lock the adjustment nut 46 in place.
  • the adjustment nut is shown with top and bottom washers 48, 50 to facilitate the turning of the adjustment nut and providing additional bearing capacity against the free end 44b of the first tubular member and the second tubular member 42b respectively.
  • Figure 7 there is shown the apparatus wherein the opposing studs 51, 53 are slightly misaligned.
  • the hole 54a in the end wall of the second interlocking member 54 is of a sufficient diameter to accommodate the misalignment of the opposing stud members 51, 53.
  • the screw jacking function of the adjustment nut 56 is retained as the washers 58, 60 and nut are of a sufficient diameter or dimension to engage the free end 60a of the first interlocking member 60.
  • the dimensions of the hole 54a in the end wall allow the first and second interlocking members 60, 54 to be aligned along the axes of the stud 51 and can be tightened accordingly to encapsulate and lock the adjustment means 56 in place. As previously discussed concrete can then be poured to seal the apparatus permanently.
  • first and second threaded studs 41, 43 of respective construction elements typically concrete columns or posts to be aligned and joined.
  • the first threaded interlocking member 44 with an external screw thread 44a is screwed onto the first stud 41.
  • the second interlocking member 42 having an end wall with a hole 42c of a diameter preferably equal to or greater than the diameter of the free end of the first interlocking member is slid over the second stud 43.
  • the internal thread 42a of the second interlocking member is adapted to engage with the external thread 44a of the first interlocking member.
  • the adjustment means comprising an adjustment nut 46 and washers 48, 50 is then screwed on to the second stud 43.
  • the washer 48 is then brought into contact with the free end 44b of the first interlocking member 44 and by further turning the adjustment nut effectively screw jacks the first locking member until the desired alignment between the construction elements is achieved.
  • the second interlocking member 42 is then engaged with the first interlocking member 44, and the interlocking members are screwed together. As the second interlocking member is tightened with respect to the first interlocking member it encapsulates and locks the adjustment nut 46. Concrete can then be poured in the space between the respective constructional elements for example a concrete floor can be poured around the apparatus thereby securely fixing the apparatus in place.
  • FIG 11 shows a pair of preferred apparatus 62, 64 according to the invention to join and align opposite structural steel elements 66, 68.
  • the threaded rods 70, 72 74 and 76 are bolted to the end flanges of the girders 6676877-s it would be appreciated the number of units used to align elements will vary accordingly to the building requirements and size of the constructional elements to be connected.
  • the preferred apparatus according to the invention could also be used to connect structural steel elements to concrete elements for example, in the case of a steel column with a base plate to a concrete foundation with cast in threaded studs (hold-down bolts).
  • FIGs 12, 13, 14 and 15 there is shown a preferred stud or bar alignment means.
  • Cap member 80 having a central protrusion 80a, the cap adapted to be fitted to the end of stud 82.
  • Protrusion 80a adapted to be inserted into a central cavity 84a of an interlocking tubular member 84 of an opposite stud 86 or bar thereby substantially aligning the opposite studs 82 and 86 shown in Figures 13 and 14.
  • Cap 80 is friction welded or screwed onto the end of stud 82.
  • Removable clip 90 is adapted to clip onto studs 82 to temporarily support interlocking tubular member 88 on studs 82 away from a capped end while inserting the protrusion of the cap 80a into the central cavity 84a to substantially align the opposite studs or bars, 82 and 86. On removing clip 90 tubular members 84 and 88 are then screwed together as shown in Figure 15.
  • construction or building “elements” are understood to include concrete posts, columns, walls, floors, other reinforced concrete structures as well as steel beams, girders or other steel structures. Where reference is made to studs, they equally apply to reinforcement bars or rods projecting from the construction elements as herein described. In the specific examples provided, the term, threaded studs is interchangeable with reinforcement bars which are externally threaded and vice versa.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Clamps And Clips (AREA)
  • Connection Of Plates (AREA)

Abstract

An apparatus for aligning and joining construction elements comprising threaded studs or bars protruding from opposing elements; interlocking members adapted to screw together associated with each of the opposed studs; an adjustment nut screwable on one of the studs wherein, the adjustment nut is screw jacked against one of the interlocking members to align the elements and then locked and encapsulated by screwing together the interlocking members. There can be additional stud or bar alignment means associated with the apparatus.

Description

INTERNATIONAL (PCT) PATENT APPLICATION
COMBINATION REINFORCING COUPLER AND COLUMN ALIGNMENT DEVICE
FIELD OF THE INVENTION
This invention relates to the building industry, in particular but not limited to an apparatus for aligning and joining reinforced concrete elements, typically columns, walls and/or structural steel components.
BACKGROUND OF THE INVENTION
The joining of reinforced concrete elements such as columns, walls, floors and beams is a well known activity in the building industry. The problems associated with this construction process are manifold and commonly is dependent on the connection of opposed reinforcement bars or rods that may or may not be accurately aligned in order to transfer tensile, compression and other forces through the connection.
Prior art connection means are as varied as the applications themselves. A common prior art method of connecting reinforcement bars is by lapping one bar with another with a preferable overlap length normally forty times the bar diameter. While this method does not require the overlapping bars to be accurately aligned it does create congestion within the confines of the concrete element. This has resulted in the concrete element which is typically a column sometimes having to be larger simply to accommodate the additional bars. This results in a coincidental degree of waste associated with this prior art method. Other methods used to join reinforcement bars utilise mechanical connectors which are generally threaded or attached by an epoxy adhesive joining the projecting ends of the reinforcement bars. This method however requires the bars to be perfectly aligned. Furthermore this method is only satisfactory if there is a single bar to be aligned with an opposite bar. Prior art disclosures of such connection methods include those disclosed in Australian Patents 2003210074 (Barfix Bermuda Ltd) which discloses a method and device for connecting reinforcing steel bars involving a connecting element comprising a thread cutting portion which cuts a screw thread in one of the reinforcing bars. The thread cutting portion cuts a conical screw thread forming a conical screw end on the reinforcement bar.
AU200 051968 discloses a structural bracing system wherein there is disclosed a lockable nut system for the use of threaded steel bar which includes a locking member which is slightly engaged with the bar. The locking member may have a finger to engage the nut with the end of the finger being displaced as a result of the deformation of a finger actuating tab. W098/44215 (Barfix Bermuda Ltd) describes a method and apparatus for interconnecting reinforcement bars wherein the connector cuts the thread in an opposing reinforcing bar as it is tightened.
In all of the above-mentioned prior art documents, the method and apparatus for joining reinforcing bars relies on the accuracy of aligning reinforcement bars of opposed separate columns. In many situations however there are multiple bars such as a cluster of bars which require connection in a group. There is presently no mechanical connection system available that provides for a tolerance in a slight misalignment between respective bars. In order to connect one cluster of bars to another cluster of bars, it can be very difficult and labour intensive to ensure that each individual bar in one cluster is accurately aligned with its respective and complementarity opposed individual bar in another cluster. Furthermore where the reinforcement bars in concrete or steel elements are not aligned and able to be mechanically connected, the elements themselves require props or other temporary means to align or support them before connecting their respective reinforcement bars which is both time and labour intensive. OBJECT OF THE INVENTION
It is the object of the invention to ameliorate or eliminate some or all the problems and disadvantages associated with the prior art by providing a novel and inventive system for aligning and joining reinforcement bars of construction elements.
STATEMENT OF INVENTION
In one aspect the invention resides in an apparatus for aligning and joining construction elements typically reinforced concrete columns, walls, floors, beams or structural steel components comprising in combination:
one or more threaded studs or threaded reinforcement bars protruding from opposing elements to be aligned and joined;
first and second threaded interlocking members adapted to screw together and to be associated with each of the opposed studs;
an adjustment nut screwable on one of the studs or bars and adapted to be encapsulated or enclosed by the interlocking members;
wherein in use, the adjustment nut is screw jacked against one of the interlocking members to align the elements and then locked and encapsulated by screwing together the interlocking members.
In a more detailed example, the invention resides in apparatus for aligning and joining construction elements together including in combination; a first threaded stud or threaded reinforcement bar imbedded in and protruding from an end from a first element; a second threaded stud or threaded reinforcement bar imbedded in and protruding from a second element to be aligned and joined with the first element;
a first tubular member fixedly attached to the first stud, the first tubular member having a threaded outer wall;
a second tubular member having an internal thread adapted to be screwed onto the first tubular member, the second tubular member having an end wall with a hole to enable the second tubular member to slide freely over the second stud or bar wherein the dimensions of the hole determines the tolerance required to accommodate any misalignment of the studs;
an adjusting nut screwable onto the second stud and in contact with the free end of the first tubular member wherein the first and the second elements are aligned by screw jacking the adjusting nut against the free end of the first tubular member and wherein the second tubular member when screwed onto the first tubular member encapsulates and locks in place the adjustment nut.
Suitably, the elements are concrete columns or walls to be vertically aligned.
Preferably the diameter of the hole in the end wall of the second tubular member is equal to or greater than the internal diameter of the free end of the first tubular member.
Preferably there are one or more washers above and below the adjustment nut to facilitate turning of the adjustment nut. The washer may be designed to provide additional bearing capacity between the adjustment nut and the tubular members. The washer may also have a slotted hole that would allow for even more bearing capacity (surface area) in the most extreme misalignment allowed for.
In another version there are no washers and the adjustment nut may be designed to negate the need for any washers for example by having top and bottom flanges.
Suitably the first and second tubular members have hexagonal or flat-faced portions to facilitate turning with a spanner. Optionally, there is one or more lock nuts which can be tightened against the first and second tubular members to further secure them on their respective threaded rods.
Preferably, there are also opposite studs or bar alignment means comprising a cap member having a central protrusion, the cap adapted to be fitted to the end of one stud or bar; the protrusion adapted to be inserted into a central cavity of an interlocking tubular member of an opposite stud or bar to substantially align the opposite studs or bars before screwing together the first and second interlocking tubular members of the studs or bars.
Preferably, the cap is friction welded or screwed onto the end of the one stud or bar.
Preferably, there are removable clips adapted to clip onto the studs or bars to temporarily support one or both of the interlocking tubular members on the studs or bars away from a capped end while inserting the protrusion of the cap into the central cavity to substantially align the opposite studs or bars.
In another aspect, the invention resides in a method of aligning reinforced concrete elements typically columns or wajls and joining their reinforcement bars or studs using the apparatus as herein described including the steps of:
a) attaching preferably by screwing the first tubular member onto the first stud or bar;
b) sliding the second tubular member over the opposing second stud or bar;
c) screwing the adjustment nut onto the second stud or bar and bringing it into contact with the free end of the first tubular member,
d) tightening the adjustment nut against the first tubular member to align the first and second columns or walls or aligning substantially the first and second studs or bars with the stud or bar alignment means;
e) on obtaining the alignment desired, screwing the second tubular member on to the first tubular member and tightening the second and first tubular members together thereby encapsulating and locking into place the adjustment nut.
BRIEF DESCRIPTION OF THE DRAWINGS
In order for the invention to be better understood and put into practical effect reference will now be made to the accompanying drawings, wherein;
Figure 1 shows the invention in use to align and join concrete columns.
Figure 2 shows a single unit of the invention in use.
Figures 3, 4, 5 show various views of the invention.
Figure 6 shows a cross sectional elevation of the invention wherein the opposing studs are substantially aligned.
Figure 7 shows a cross sectional, a elevation of the invention wherein the studs are misaligned.
Figures 8, 9 and 10 show various exploded views of the invention.
Figure 11 shows the invention in use to join opposing structural steel elements.
Figure 12, 13, 14 and 15 show an assembly of a stud or bar alignment means.
DETAILED DESCRIPTION OF THE DRAWINGS
Referring now to Figure 1 there is shown a number of units of the invention 10, 12, 14, 16, 18, 20, 22, 24, in use to align and join rectangular concrete columns or opposed walls sections 26, 28.
It will be apparent that the number of the units of the invention required will depend on the load bearing specification and safety requirements in respect of the particular application. In this section a number of units have been used to align and join the concrete columns or walls.
Referring now to Figure 2 there is shown the invention in use to join and align an upper 30 and a lower 32 construction element wherein the opposed threaded studs 34, 36 are substantially aligned and the top 38 and bottom 40 tubular members are tightened to encapsulate the adjustment nut (not shown). In this example the first tubular member has a flange 38a which provides added purchase or grip in concrete which is poured around the unit thereby sealing the unit. In another aspect, the flange 38a also provides a means by which the tubular member 38 can be secured against an edgeform if it is required to be cast into the construction element 30 leaving only the externally threaded tubular portion protruding from the construction element.
Both first and second (i.e. top and bottom) tubular members, have hexagonal portions 38 b, 40a to facilitate tightening with an open ended spanner. Referring now to Figures 3, 4 and 5 and using the same numbering as for Figure 2. there in shown various views of the apparatus from different angles. In all views, the first 38 and second 40 tubular members have been screwed tight thereby encapsulating and locking in place the adjustment nut (not shown). It is apparent in all views that the opposed threaded studs 34, 36 are substantially coaxially aligned in these views.
As is also shown in Figure 4, lock nuts 38c and 40b are optionally provided, which can be tightened against the first and second tubular members (38 and 40, respectively) so as to further secure them on the opposing threaded rods 34 and 36.
Referring now to Figure 6 and 7 there is shown a cross section elevation of the invention wherein the opposing studs 41, 43 are aligned and misaligned 51, 53 respectively. In the cross sectional view of Figure 6 the internal thread 42a of the second tubular member 42 is shown engaged with the first tubular member 44 having an external thread 44a whereby both tubular members have been tightened and overlapped to lock the adjustment nut 46 in place. The adjustment nut is shown with top and bottom washers 48, 50 to facilitate the turning of the adjustment nut and providing additional bearing capacity against the free end 44b of the first tubular member and the second tubular member 42b respectively. Referring now to Figure 7 there is shown the apparatus wherein the opposing studs 51, 53 are slightly misaligned. In this case it will be noticed that the hole 54a in the end wall of the second interlocking member 54 is of a sufficient diameter to accommodate the misalignment of the opposing stud members 51, 53. The screw jacking function of the adjustment nut 56 is retained as the washers 58, 60 and nut are of a sufficient diameter or dimension to engage the free end 60a of the first interlocking member 60. The dimensions of the hole 54a in the end wall allow the first and second interlocking members 60, 54 to be aligned along the axes of the stud 51 and can be tightened accordingly to encapsulate and lock the adjustment means 56 in place. As previously discussed concrete can then be poured to seal the apparatus permanently.
Referring now to Figure 8, 9, and 10 there are shown exploded views of a preferred apparatus according to the invention. The same numbering system as for Figure 6 and 7 are used. There is shown opposing first and second threaded studs 41, 43 of respective construction elements (not shown) typically concrete columns or posts to be aligned and joined. The first threaded interlocking member 44 with an external screw thread 44a is screwed onto the first stud 41. The second interlocking member 42 having an end wall with a hole 42c of a diameter preferably equal to or greater than the diameter of the free end of the first interlocking member is slid over the second stud 43. The internal thread 42a of the second interlocking member is adapted to engage with the external thread 44a of the first interlocking member. The adjustment means comprising an adjustment nut 46 and washers 48, 50 is then screwed on to the second stud 43. The washer 48 is then brought into contact with the free end 44b of the first interlocking member 44 and by further turning the adjustment nut effectively screw jacks the first locking member until the desired alignment between the construction elements is achieved. The second interlocking member 42 is then engaged with the first interlocking member 44, and the interlocking members are screwed together. As the second interlocking member is tightened with respect to the first interlocking member it encapsulates and locks the adjustment nut 46. Concrete can then be poured in the space between the respective constructional elements for example a concrete floor can be poured around the apparatus thereby securely fixing the apparatus in place.
Referring now to Figure 11 shows a pair of preferred apparatus 62, 64 according to the invention to join and align opposite structural steel elements 66, 68. The threaded rods 70, 72 74 and 76 are bolted to the end flanges of the girders 6676877-s it would be appreciated the number of units used to align elements will vary accordingly to the building requirements and size of the constructional elements to be connected. Similarly, the preferred apparatus according to the invention could also be used to connect structural steel elements to concrete elements for example, in the case of a steel column with a base plate to a concrete foundation with cast in threaded studs (hold-down bolts). Referring now to Figures 12, 13, 14 and 15 there is shown a preferred stud or bar alignment means. Cap member 80 having a central protrusion 80a, the cap adapted to be fitted to the end of stud 82.
Protrusion 80a adapted to be inserted into a central cavity 84a of an interlocking tubular member 84 of an opposite stud 86 or bar thereby substantially aligning the opposite studs 82 and 86 shown in Figures 13 and 14.
Cap 80 is friction welded or screwed onto the end of stud 82.
Removable clip 90 is adapted to clip onto studs 82 to temporarily support interlocking tubular member 88 on studs 82 away from a capped end while inserting the protrusion of the cap 80a into the central cavity 84a to substantially align the opposite studs or bars, 82 and 86. On removing clip 90 tubular members 84 and 88 are then screwed together as shown in Figure 15.
It will of course be realised that while the foregoing has been given by way of illustrative example of this invention, all such and other modifications and variations thereto as would be apparent to persons skilled in the art are deemed to fall within the broad scope and ambit of this invention as is herein set forth. Additionally, throughout the specification it should be appreciated that the terms "comprising" and "containing" shall be understood to have a broad meaning similar to the term "including" and will be understood to imply the inclusion of a stated integer or step or group of integers or steps but not the exclusion of any other integer or step or group of integers or steps. This definition also applies to variations on the terms "comprising" and "containing" such as "comprise", "comprises", "contain" and "contains".
Moreover, the term construction or building "elements" are understood to include concrete posts, columns, walls, floors, other reinforced concrete structures as well as steel beams, girders or other steel structures. Where reference is made to studs, they equally apply to reinforcement bars or rods projecting from the construction elements as herein described. In the specific examples provided, the term, threaded studs is interchangeable with reinforcement bars which are externally threaded and vice versa.

Claims

1. An apparatus for aligning and joining construction elements comprising in combination:
one or more threaded studs protruding from opposing elements to be aligned and joined;
first and second threaded interlocking members adapted to screw together and to be associated with each of the opposed studs;
an adjustment nut screwable on one of the studs and adapted to be encapsulated or enclosed by the interlocking members;
wherein, the adjustment nut is screw jacked against one of the interlocking members to align the elements and then locked and encapsulated by screwing together the interlocking members.
2. An apparatus for aligning and joining construction elements including in combination;
a first threaded stud or threaded reinforcement bar imbedded in and protruding from an end from a first element; a second threaded stud or threaded reinforcement bar imbedded in and protruding from a second element to be aligned and joined with the first element;
a first tubular member fixedly attached to the first stud, the first tubular member having a threaded outer wall;
a second tubular member having an internal thread adapted to be screwed onto the first tubular member, the second tubular member having an end wall with a hole to enable the second tubular member to slide freely over the second stud or bar wherein the dimensions of the hole determines the tolerance required to accommodate any misalignment of the studs;
an adjusting nut screwable onto the second stud and in contact with the free end of the first tubular member wherein the first and the second elements are aligned by screw jacking the adjusting nut against the free end of the first tubular member and wherein the second tubular member when screwed onto the first tubular member encapsulates and locks in place the adjustment nut.
Suitably, the elements are concrete columns or walls to be vertically aligned.
3. The apparatus of Claim 2 wherein the diameter of the hole in the end wall of the second tubular member is equal to or greater than the internal diameter of the free end of the first tubular member.
4. The apparatus of Claim 1 or Claim 2 wherein there are one or more washers above and below the adjustment nut to facilitate turning of the adjustment nut.
5. The apparatus of Claim 4 wherein the washers are designed to provide additional bearing capacity between the adjustment nut and the tubular members.
6. The apparatus of Claim 4 or Claim 5 wherein the washer has a slotted hole that would allow for greater bearing capacity surface area to allow for extreme misalignment of the opposed studs or bars.
7. The apparatus of any of the above claims wherein the adjustment nut is designed to negate the need for washers by having top and bottom flanges.
8. The apparatus of any of the above claims herein the first and second tubular members have hexagonal or flat-faced portions to facilitate turning with a spanner.
9. The apparatus of any of the above claims wherein there is one or more lock nuts which can be tightened against the first and second tubular members to further secure them on their respective threaded studs or bars.
10. The apparatus of any of the above claims wherein there are opposite stud or bar alignment means comprising a cap member having a central protrusion, the cap adapted to be fitted to the end of one stud or bar;
the protrusion adapted to be inserted into a central cavity of an interlocking tubular member of an opposite stud or bar thereby substantially aligning the studs or bars before screwing together the first and second interlocking tubular members.
11. The apparatus of Claim 10 wherein the cap is friction welded or screwed onto the end of the one stud or bar.
12. The apparatus of any of the above claims wherein an interlocking tubular member supporting a cap member can be screwed in or out against the cap member to provide a further means of alignment.
13. The apparatus of any of the above claims wherein there are removable clips adapted to clip onto the studs or bars to temporarily support one or both of the interlocking tubular members on the studs or bars while aligning the studs or bars.
14. A method of aligning reinforced concrete elements and joining their reinforcement bars or studs using the apparatus as claimed in any of the above claims including the steps of: a) attaching by screwing the first tubular member onto the first stud or bar;
b) sliding the second tubular member over the opposing second stud or bar;
c) screwing the adjustment nut onto the second stud or bar and bringing it into contact with the free end of the first tubular member,
d) tightening the adjustment nut against the first tubular member to align the first and second elements or aligning the first and second studs or bars with stud or bar alignment means; e) on obtaining the alignment desired, screwing the second tubular member on to the first tubular member and tightening the second and first tubular members together thereby encapsulating and locking into place the adjustment nut.
EP13810601.8A 2012-06-27 2013-06-26 Combination reinforcing coupler and column alignment device Active EP2867422B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2012902731A AU2012902731A0 (en) 2012-06-27 Combination reinforcing coupler and column alignment device
PCT/AU2013/000694 WO2014000038A1 (en) 2012-06-27 2013-06-26 Combination reinforcing coupler and column alignment device

Publications (3)

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EP2867422A1 true EP2867422A1 (en) 2015-05-06
EP2867422A4 EP2867422A4 (en) 2016-03-23
EP2867422B1 EP2867422B1 (en) 2020-03-11

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US (1) US9840844B2 (en)
EP (1) EP2867422B1 (en)
JP (1) JP6340001B2 (en)
KR (1) KR102166001B1 (en)
CN (1) CN104520518B (en)
BR (1) BR112014032519B1 (en)
CA (1) CA2877186C (en)
DK (1) DK2867422T3 (en)
EA (1) EA029465B1 (en)
ES (1) ES2794473T3 (en)
HK (1) HK1209166A1 (en)
MY (1) MY171229A (en)
NZ (1) NZ627596A (en)
SG (1) SG11201408669VA (en)
TW (1) TWI601871B (en)
WO (1) WO2014000038A1 (en)
ZA (1) ZA201500556B (en)

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KR102166001B1 (en) 2020-10-16
AU2013284347A1 (en) 2014-08-14
ES2794473T3 (en) 2020-11-18
TW201404980A (en) 2014-02-01
HK1209166A1 (en) 2016-03-24
US9840844B2 (en) 2017-12-12
CA2877186A1 (en) 2014-01-03
JP2015521698A (en) 2015-07-30
BR112014032519A2 (en) 2017-06-27
BR112014032519B1 (en) 2021-02-23
TWI601871B (en) 2017-10-11
CN104520518B (en) 2018-12-14
SG11201408669VA (en) 2015-01-29
WO2014000038A1 (en) 2014-01-03
CA2877186C (en) 2020-01-28
CN104520518A (en) 2015-04-15
DK2867422T3 (en) 2020-06-15
JP6340001B2 (en) 2018-06-06
KR20150029706A (en) 2015-03-18
ZA201500556B (en) 2016-03-30
MY171229A (en) 2019-10-03
EA029465B1 (en) 2018-03-30
EP2867422A4 (en) 2016-03-23
US20150292207A1 (en) 2015-10-15
EA201590120A1 (en) 2015-06-30
EP2867422B1 (en) 2020-03-11
NZ627596A (en) 2015-07-31

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